Peters



CHARLES H. MILLER, OF'EUFEALO. NEW YORK'.

Lena-s Patent No. 81,394, and Anglia ,25, 186s.

IMPROVEMENT IN TRAGE-BUGKLE.

etge tigchule afina 'tu it tigese tfttrts tinten mit milking gurl nt tige stmt.

VTO ALL WHOM IT MAYCONCERN:

Be it known that I, CHARLES H. MILLER, of'thc city of Buialo, in the county of Erie, and State of New York, have invented'a certain new anduseful Improvement in Trace-Buckles; and I do hereby declare that the following is a full and exact description thereof, reference being had to thc accompanying drawings, in which- Figure I'is an outside elevation of niy improved buckle, with a trace represented as held thereby. I

- Figure II is aulongitudinal section thereof.

Like letters refer to like Barts in both figures.

My invention consists of a frame, cest with two cross-bar`s or plates, each a short distance from the centre, and with two outwardly-projecting standard-bearings from thh centro of cach side, in which is hinged a. cam, provided at the rear edge with a spur or tooth, saidcain operating to press or wedge the trace against the crossbars, and securely retain the same, thereby dispensing with the necessity oi' making holes in the trace, which, soon becoming worn'by the tongue therein,r greatly weakens the trace.

In the drawings, A represents the frame of the buckle, having-a loop, a, for attaching that portion of the trace which connects with the haines` or breastcollar, as the case may be; the ordinary slide loops a a', two cross-bars or plates, ZJ b, iinsh with the inner side of the frame,.arranged so as to leave a space, c, between them at the centre of the frame; and two arms or standards, cZ c2, projecting outwardly from the centre of cach side of the frame. These arms, which form bearings for the cam hereafter to be described, are each cast with a groove, c, in the inner side, extending to near theextreinity, which permits the insertion of the cam by simply sliding the journals thereof in` the same. v

F is the'cam Vor pressure-plate, formed with journals g g at each end, which have their bearings in the arms d, as above describe-d. li is. the cain or pressure-surface thereof, which may he roughened, as desired. A piece of leather may also be inserted in the face of the cam, if preferrehto increase the adhesion between the cam and trace I. rl'he rear edge oi' the cam is formed with a tooth or spur, z', which may be made as shown, or with a dull extended edge, like a blunt chisel, having its edge running crosswise oi' the trace, seas to present a greater surface oi resistance to the latter. g I

The trace is inserted by swinging up the ca1n,`as shown in red lines, Fig. II, which leaves a free passage for the same. The cam is then pressed down Yagainst the trace, the tooth z' indenting in the leather, as represented in black lines, when the strain on the trace in drawing (in the direction of the arrow) causes the cam to press with corresponding vforce the tug against the crossf'oars on the opposite side, thus effectually preventing its withdrawal.

vThe space, c, between the eross-bars permits the trace to be slightly depressed therein, which renders the withdrawal of the trace more diiiicnlt. I

rhe great advantages of my improvements are- In dispensing wit-'n the necessity of punching holes in the trace', and thereby greatly weakening it. The clamping ni the trace distributes the strain oi' the fastening equally over Vthe entire width of the same, instead' 4of at one point, as is the ease whe-re a tongue is employed.

Constructing the parts in the manner described enables them to be easily cast, and to be put together without finishing, and at the least possible cost.

Leaving a space, @,betwecn the cross-hars b b, enabies the grooves e in the arms to `he moulded, and the pattern drawn from the sand, without using a core. 'his space also facilitates the insertion ofthe `journals of the cam in the hearings. .r

` What I cliiiin asmy invention, and desire to secure by Letters Patent, is-

'Ihe hinged pressure-cam F, constructed uhd operating as specilicd.

CHARLES H. MILLER.

Witnesses: l V. H. BECKER,

'EownD WILHELM. 

